[9] Hanson's mother pulled him out of high school following the first day of his junior year after he had moved; he instead pursued and received a GED.

[22] In 2009, Hanson provided the voice for the character John Gore in the video game Minigore,[23] and later reprised the role in the 2011 remake of Death Rally.

[25] Hanson has also voiced various characters for Hex Heroes, Dragon Age: Inquisition, Target Acquired, Red vs. Blue, Cyanide & Happiness, and Rick and Morty.

[2][26][27][28][6] From 2016 to 2018, Hanson has been a regular on Cartoon Network's Mighty Magiswords providing the voice of Gateaux, the monosyllabic partner of sorceress Moribidia, played by Mary Faber.

[31][6] According to series creator, Kyle Carrozza, Hanson was originally approached for character design on the show, but he declined.

In July 2012, Hanson and his colleague Jon Jafari (known for his comedy webseries JonTron) created a joint YouTube channel, called Game Grumps.

In late June 2013, Dan Avidan, of the band Ninja Sex Party, replaced Jafari when he retired from Game Grumps to focus on his personal channel.

[39][40] In 2008, Hanson worked together with Ross O'Donovan on the animated webseries Gamer Tonight where he provided the voice of the host, which was broadcast on the Australian television show Good Game.

[48] Besides providing additional work for online series on YouTube and Newgrounds, Hanson has been featured in several videos for the website ScrewAttack, including a collaboration with James Rolfe and Keith Apicary.

[50] In 2013, Hanson performed the introduction to a version of "Knight in Shining Armour" by Dougal and Gammer released as part of the compilation Clubland X-Treme Hardcore 9.

[51] In 2013, Hanson, along with Game Grumps co-host and Ninja Sex Party singer-songwriter Dan Avidan and instrumentalist Brian Wecht, formed the band Starbomb.

[55] On April 15, 2014, Fat Refund, a rap song, was released on the channel StamperTV, a collaboration between several animators and voice actors including Rice Pirate, Marc M., Stamper, and Hanson himself.

[59][60] In 2014, he returned to the show, reviewing the game Metal Gear Solid V: Ground Zeroes while eating a Bhut jolokia.

[61] In 2015, Hanson again appeared on the show, reviewing the game Metal Gear Solid V: The Phantom Pain while consuming Sichuan peppers.

[68] Hanson's channel name "Egoraptor" has been featured as a cheat code in the 2019 Metroidvania game Bloodstained: Ritual of the Night, along with several other prominent YouTube personalities.